seb/blue-repeat
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity
4 Commits 6 Branches 0 Tags
Commit Graph

4 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
blue
0b474b172b Add per-speaker delay sync with Wi-Fi/web UI + ESP-NOW 
Adds runtime speaker-sync control to the relay:

- src/relay_config.h: shared Wi-Fi AP creds + ESP-NOW RelayDelayMsg
  (delay_ms[JBL], delay_ms[Cardo]) on a fixed channel.
- board_sink.cpp (Board A): hosts a Wi-Fi AP "BikeAudio-Setup" + a small
  web UI (two sliders, no app) at 192.168.4.1, and broadcasts the chosen
  per-speaker delays to the source boards over ESP-NOW. Still A2DP sink +
  I2S master. (Tune while parked — Wi-Fi/BT coexist on one radio.)
- board_source.cpp (Boards B/C): inserts an adjustable delay line between
  I2S in and A2DP out — a dedicated reader task fills a ring buffer (up to
  ~250 ms) and the A2DP callback reads delay_frames behind the write head.
  Delay arrives via ESP-NOW (per SPEAKER_ID) and is persisted to flash
  (Preferences), so it survives power cycles.
- platformio.ini: source envs get -DSPEAKER_ID (0=JBL, 1=Cardo).

Lets the rider trim JBL vs Cardo timing to sync the two speakers.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-10 13:11:41 -04:00
blue
baa3ef7690 3-board relay firmware: sink + I2S + dual source 
Implements the only architecture that can relay iPhone audio to two BT
speakers at once (one ESP32 cannot be A2DP sink+source, and a source holds
only one link):

  iPhone ))BT)) [Board A: A2DP sink -> I2S master]
                      ==I2S bus==> [Board B: I2S slave -> A2DP source] ))BT)) JBL
                      ==I2S bus==> [Board C: I2S slave -> A2DP source] ))BT)) Cardo

- src/board_sink.cpp   : A2DP sink "BikeAudio", forwards decoded PCM to an
  I2S master bus (BCK=5, WS=25, DATA=23); follows negotiated sample rate.
- src/board_source.cpp : I2S slave (BCK=19, WS=18, DATA=22) -> A2DP source,
  target speaker via TARGET_SPEAKER build flag; pads silence on underrun.
- platformio.ini       : 3 envs (sink, source_jbl, source_cardo) sharing an
  [env] base; sources differ only by TARGET_SPEAKER. build_src_filter selects
  the per-board source file. Libs pinned as before.
- README_RELAY.md      : wiring table, I2S bus topology, flash order, pairing,
  and the speaker-sync limitation.

Replaces the single-board src/main.cpp (architecturally impossible). All
three envs build clean. Hardware flash + wiring next.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-10 11:35:12 -04:00
blue
04e7f20430 Convert Arduino sketch to PlatformIO project 
Restructure BikeAudio for PlatformIO while preserving the original
build specs from the .ino header:
  - platform espressif32 @ ~6.6.0  -> ESP32 Arduino core 2.0.17
  - board esp32dev (ESP32 DevKitC v4)
  - board_build.partitions = huge_app.csv (Huge APP, required for BT stack)
  - monitor_speed = 115200

Changes:
  - BikeAudio.ino -> src/main.cpp (+ #include <Arduino.h>, print_status()
    forward declaration; PlatformIO compiles .cpp directly and does not
    auto-generate prototypes like the Arduino IDE).
  - Add platformio.ini with pschatzmann ESP32-A2DP + arduino-audio-tools
    pinned to exact commits (ESP32-A2DP 1.8.11, audio-tools 1.2.4) for
    reproducible builds.
  - Adapt three spots to the current library API (behavior preserved):
      * RingBuffer<uint8_t>::read() -> bool read(T&)
      * connection-state callbacks: drop esp_bd_addr_t arg
        -> (esp_a2d_connection_state_t, void*)
      * BluetoothA2DPSource::start(name, bool) -> start(name)
        (auto-reconnect already configured via set_auto_reconnect(true))

Verified: pio run -e esp32dev succeeds.
RAM 14.5% (47.6 KB), Flash 42.0% (1.32 MB / 3 MB).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
 2026-06-10 09:44:09 -04:00
Sebastien Vayrette
276489cb17 feat: initial BikeAudio firmware 
ESP32 DevKitC v4 Bluetooth audio relay.
iPhone -> ESP32 (A2DP sink) -> JBL Charge 5 + Tangerine EDGE (dual A2DP source).
Dual mirrored ring buffers for in-sync output, auto-reconnect on boot.
 2026-06-09 12:51:08 -04:00